Antenna system



FIG. 1 is a front elevational view of an antenna system showing our new design, the rear elevational view being a mirror image thereof;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof; and,

FIG. 4 is a right side elevational view thereof; the left side elevational view being a mirror image thereof. 

The ornamental design for an antenna system, as shown and described. 